Asian Journal of Innovation and Policy

Asian Society for Innovation and Policy (아시아기술혁신학회)
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Analysis of Secondary Battery Trends Using Topic Modeling: Focusing on Solid-State Batteries

  • Chunghyun Do (Office of R&D Planning, Korea Research Institute of Chemical Technology) ;
  • Yong Jin Kim (Office of R&D Planning, Korea Research Institute of Chemical Technology)
  • Received : 2023.12.12
  • Accepted : 2023.12.28
  • Published : 2023.12.31
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Abstract

As the widespread adoption and proliferation of electric vehicles continue, the secondary battery market is experiencing rapid growth. However, lithium-ion batteries, which constitute a majority of secondary batteries, present high risks of fire and explosion. Solid-state batteries are thus garnering attention as the next-generation batteries since they eliminate fire hazards and significantly reduce the risk of explosions. Against this background, the study aimed to analyze research trends and provide insights by examining 2,927 domestic papers related to solid-state batteries over the past decade (2013-2022). Specifically, we used topic modeling to extract major keywords associated with solid-state batteries research and to explore the network characteristics across major topics. The changes in research on solid-state batteries were analyzed in-depth by calculating topic dominance by year. The findings provide an overview of the emerging trends in domestic solid-state battery research, and might serve as a valuable reference in shaping long-term research directions.

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